<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.bootcdn.net/ajax/libs/lodash.js/4.17.21/lodash.min.js"></script>
   <style>
     .box{
        width: 300px;
        height: 300px;
        background-color: antiquewhite;
        border: 1px solid #000;
    }
   </style>
</head>
<body>
    <div class="box"></div>
    <script>
      const oBox =document.querySelector(".box");

      // 鼠标移动事件的lodash的使用
      function center(e){
        console.log("center");
        console.log(e.target);
        console.log(this);
      }
      oBox.onmousemove=_.throttle(center,300);

      function enter(){
        this.style.background="red";
      }

      function leave(){
        this.style.background = "";
      }
      oBox.onmouseenter = _.throttle(enter,300, {
      //lodash的节流提供两个配置，leading控制节流返回的回调函数是否在初始的时候触发，trailing控制节流返回的回调函数是否在最后也触发
      leading:true,
      trailing:false,
      });
      oBox.onmouseleave =leave;
    </script>
</body>
</html>